The First Win is a 4x4 multipurpose armoured vehicle designed and manufactured in Thailand by the Defense Company Chaiseri. The vehicle was unveiled for the first time to the public during the International Defense Exhibition IDEX in February 2011. The First Win was fully designed and developed by Chaiseri using a monocoque hull and 4x4 driveline. The First Win is a multi-role armoured vehicle which can be used to perform military, peacekeeping, administrative, law enforcement and police missions. In December 2013, DRS Technologies, a Finmeccanica Company now Leonardo, announced that its Network and Imaging Systems group and Thailand's Chaiseri Metal & Rubber Co Ltd. have entered into an exclusive teaming agreement to integrate DRS's C4InSight™ mission command capabilities into the new Chaiseri First Win multi-role armored 4x4 tactical vehicle. The vehicle is in service with the Thai army and police forces. In 2015, Philippines have ordered left-hand version of the First Win for the airport security forces of the Clark Airport north of Manila. Chaiseri has also signed an agreement with the Malaysian Deftech under which the First Win is being offered to meet the future operational requirements of the Royal Malaysian Army with the local name of AV4. The Malaysian army could purchase 200 vehicles.

Variants:

First Win multipurpose armoured: standard version of the vehicle used by the Thai army. The vehicle is fitted with an open-top one man turret which can be armed with a 7.62mm or 12.7mm machine gun.

First Win anti-riot vehicle: the vehicle is used by the Thai Police and carried a total of 8 police officers including driver and commander. The vehicle is fitted with a remotely operated weapon station.

First Win APC: At the Defense & Security 2015 in Thailand, Chaiseri has unveiled a new version of the First Win in armoured personnel carrier (APC) variant. The APC variant of the First Win has a longer troops compartment to carry more military personnel.

AV4 LipanBara: this is the First Win vehicle produced for the Malaysian army jointly with the Malaysian Company Deftech

The standard version of Chaiseri First Win armoured vehicle is fitted with a one-man open turret mounted on the front part of the roof which can be armed with a machine gun up to 12.7mm machine gun. There is a single hatch that opens to the rear. The turret is protected with armour plates on 360°. The First Win can also be fitted with remote weapon system to allow the gunner operate the weapons and reload from inside the vehicle offering protection under armour.

Design and protection

The Chaiseri First Win armoured vehicle is based on a V-shaped monocoque hull with the engine at the front, crew in the middle and troops compartment at the rear. The engine compartment is fully protected from ballistic and mine threats. There is two door on each side of the hull and one manual single door at the rear of the vehicle. Each doors are fitted with one small bullet proof window with one firing port in the upper part. Three additional bullet proof windows are available on each side of the troops compartment with firing port. The First Win can carried a total of 8 military personnel including driver, commander and gunner. The vehicle has a gross weight of 13,000 kg with a payload of 2,000 kg. The hull of the vehicle offers standard protection STANAG 4569 Level 1 against firing of small arms 7.62mm caliber and shell splinters. The protection of the vehicle can be upgraded to Level 3 STANAG 4569 firing of small arms 7.62×51mm AP (Armor-Piercing) at 30 meters with 930 m/s and mine blast of 8 kg TNT under the wheel and the hull.

Mobility

The Chaiseri First Win multipupose armoured vehicle is motorized with a Cummins ISB engine developing 300 hp. coupled to an to an Allison 2500 automatic transmission system with six forward and one reverse gear. The First Win has selectable 4x4 or 4x2 drive configurations with differential lock. The vehicle can run at a maximum road speed of 110 km/g with a maximum cruising range of 600 km and 400 km in off-road conditions. The First Win can negotiate a gradient of 60% and side slopes of 40%. It can climb vertical obstacles of 0.5m, cross trenches of 0.9m, and ford in up to 1m-deep waters.

Accessories

Standard equipment of the Chaiseri multipurpose armoured includes RTC60 transfer case, anti-lock braking system (ABS), automatic tyre inflation system with run-flats. There is one storage box on each side of the hull and one jerrycan at the rear. A self-recovery winch is mounted at the front of the engine compartment. There is also white lights mounted on the roof of the troops compartment.